I too have the same problem.
After installing gives the same error message
as given on top of this forum;
---
Report the following:
⎕WI CREATION ERROR: Class not registered "TIS.TX.TextControl.19"
VerseList2[5] a←form ⎕wi '.txVL.Create' TXVersion
^
----------------------------------------
VerseList2[5] *
TxCtrl[41]
Start[56]
----
I closed all working programs and tried to install as admin
and still the problem continues.
Can anyone please help me install Tooltip Tool NT?